Question
In: Statistics and Probability
Calculate the sample variance and sample standard deviation for the following frequency distribution of heart rates...
Calculate the sample variance and sample standard deviation for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to one more decimal place than the largest number of decimal places given in the data.
| Class | Frequency |
|---|---|
| 61 - 66 | 4 |
| 67 - 72 | 8 |
| 73 - 78 | 5 |
| 79 - 84 | 7 |
| 85 - 90 | 13 |
Solutions
Expert Solution
Sample variance=75.2
Sample standard deviation =8.7
Answers are rounded off to 1 decimal places since data is in integer format that is data is round off to 0 decimals.
Note:
If there is any understanding problem regarding the sum, please feel free to ask any doubt in comment box. THANKS.
orchestra answered 3 years agoRelated Solutions
Calculate the sample variance and sample standard deviation for the following frequency distribution of heart rates...
Calculate the sample variance and sample standard deviation for
the following frequency distribution of heart rates for a sample of
American adults. If necessary, round to one more decimal place than
the largest number of decimal places given in the data.
Heart Rates in Beats per Minute
Class
Frequency
61 - 66
10
67 - 72
6
73 - 78
14
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5
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Calculate the sample standard deviation and sample variance for the following frequency distribution of heart rates...
Calculate the sample standard deviation and sample variance for
the following frequency distribution of heart rates for a sample of
American adults. If necessary, round to one more decimal place than
the largest number of decimal places given in the data. Heart Rates
in Beats per MinuteClass Frequency 61 - 66 12 67 - 72 3 73 - 78 9
79 - 84 11 85 - 90 13
Calculate the sample standard deviation and sample variance for the following frequency distribution of heart rates...
Calculate the sample standard deviation and sample variance for
the following frequency distribution of heart rates for a sample of
American adults. If necessary, round to one more decimal place than
the largest number of decimal places given in the data.
Class Frequency
61 - 66 4
67 - 72 8
73 - 78 5
79 - 84 7
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Sample Mean:...
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